[TI-H] Re: TI-86 hardware upgrades
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[TI-H] Re: TI-86 hardware upgrades
On Thu, 9 Aug 2001 12:23:29 -0700 (PDT) "Ryan M. McConahy"
<jfanonymous@yahoo.com> writes:
> Is it possible to replace the ROM chip in the TI-86 with a FlashROM
> chip?
Even if you could, you wouldn't be able to reprogram it in-circuit
without some major changes.
> How about the RAM chip?
> Could I (with software) use a bigger one?
If you got another chip exactly the same as the one already in there, it
might be possible to piggy-back it and double the memory. You'd need to
disconnect one chip-select lead and connect it to the high address line
from the ROM.
Both of these are surface mount chips, which means some seriously tricky
soldering, probably with a grounded iron, with pads that are probably
about 0.05 inches apart.
-josh
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